Communication:tors:nullUse:swimming toolsFunction:MicroWaterproof,Noise CanngColor:BlueName:Bone Conduction headsetReceive Sensitivity:-13DBuModulation:FMInput sensitivity:≤ 200mvNoise- 82dBDistortion rate:Less than 0.7 %Audio FM between:60Hz to 20kHzLoudspeaker:Bone conduction transducerWaterproof:IPX8Size:65mm(L)X46mm(W)X12.5mm(H)